Dr. John Grotzinger is the chief scientist and head of strategic planning for the Mars Science Laboratory Rover mission, which riveted the country with its dare-devil landing in August 2012. A geologist, he hopes to gain more understanding of Earth’s evolution through the study of Mars. Grotzinger was also a part of the team that made the discovery of evidence for liquid water on ancient Mars. He discusses strategic planning, motivating teams, and the need to take on a “grand challenge” while sharing amazingly unique and cutting-edge stories, video, and photos about space.

Bill Weir is a veteran anchor, writer, producer, and host who came to CNN in 2013 after a decade of award-winning journalism at ABC News. In 2019, he was named the network's first Chief Climate Correspondent, drawing on his experience creating and hosting the primetime CNN Original Series "The Wonder List with Bill Weir." With his distinctive storytelling style, lush photography and a focus on our connected planet, Weir shot three seasons of his show across 26 countries, highlighting wondrous people, places, cultures, and creatures on the brink of seismic change.

Tim Peake is a former Apache pilot, flight instructor, test pilot and current European Space Agency astronaut. A veteran of 18 years military service, Tim has flown over 3,000 hours on operations worldwide. In December 2015, Tim became the first British astronaut to visit the International Space Station and conduct a spacewalk during his six-month mission, Principia, where he captured the hearts and minds of millions. Tim’s mission engaged more than two million students in outreach activities. He has a background as a test pilot and a British Army Air Corps officer, and he is also a best-selling author. In addition to his achievements, he ran the London marathon from space. He is an ambassador for STEM Education, The Prince’s Trust, and the Scout Association.

Jessica Cox has famously eliminated the words “I can’t” from her vocabulary. Despite being born without arms due to a birth defect, she has never allowed that to be a limiting factor. While Jessica suffered from self-esteem issues and physical challenges, she managed to overcome and achieve by graduating from college, learning to swim, drive a car, surf, scuba dive, and fly an airplane, becoming a Tae Kwon-Do State Champion, and living independently using her feet in ways others who take their hands for granted can only imagine. Jessica holds the title of the first person without arms to get a black belt in ATA Martial Arts and the Guinness World Record for the first pilot to fly with her feet. Her keynote speech focuses on turning “impossible” into “accomplishment.” As a person who has never viewed herself as a victim of her condition, Jessica shares humorous stories of struggles and success living in a “two-handed” world. She provides critical insight on how best to approach a challenge, redefining the concept of innovative thinking. She helps people reconnect with their own inner strengths and aptitudes.

Alex Gregory is an Olympic rowing gold medalist for Great Britain and world rowing championship winner. He is passionate about sharing his story and inspiring others to find the strength that lies within themselves. In 2013, he was appointed Member of the Order of the British Empire (MBE) for services to rowing.

Bob Ballard shares amazing stories with incredible enthusiasm and energy about the treasures of the ocean and how new discoveries could solve the world’s toughest problems. The man who discovered the Titanic, the Bismarck, and life at the bottom of the sea is an enthralling presenter who inspires curiosity and adventure through science and education. He weaves in his own discoveries to illustrate his points and uses incredible pictures to bring his adventures to life.

Robert Richman is a culture strategist and was the co-creator of Zappos Insights, an innovative program focused on educating companies on the secrets behind Zappos’ amazing employee culture. Robert built Zappos Insights from a small website to a thriving multi-million dollar business teaching over 25,000 students per year. Through his work, Robert has been helpful for improving the employee culture at hundreds of companies. As one of the world’s authorities on employee culture and customer experience, Robert is a sought-after keynote speaker at conferences around the world and has been hired to teach culture in person at companies like Google, Toyota, and Eli Lilly.

Lord Stuart Rose is the former chairman and chief executive of Marks & Spencer, Argos, Arcadia Group, and Booker Plc. Stuart, one of the preeminent executives in retail and one of the best-known British business leaders, is credited with giving Marks & Spencer renewed energy and cachet among younger, more fashion-savvy customers. During his time, he successfully defended the company from several takeover attempts, helped to rejuvenate the brand and was named the 2006 Business Leader of the Year by the World Leadership Forum.

Debbie Sterling is the Founder and CEO of GoldieBlox, an award winning company on a mission to ‐"disrupt the pink aisle" with toys, games, and media for girls. Debbie is an engineer, entrepreneur, and one of the leaders in the movement toward getting girls interested in science, technology, engineering, and math. She was named TIME Magazine’s "Person of the Moment,” Business Insider’s "30 Women Who Are Changing the World,” and was recently added to Fortune Magazine’s prestigious “40 Under 40” list. In early 2015, Debbie was inducted as a Presidential Ambassador for Global Entrepreneurship and honored by the National Women’s History Museum with a “Living Legacy” Award for her work to empower girls around the world.

When Bonner Paddock Rinn falls down, he gets back up in a big way. He has spent his life shaking off skinned knees, broken bones and doctors’ warnings. And at 33, he became the first person diagnosed with cerebral palsy to climb Mt. Kilimanjaro unassisted. In his new book One More Step, Bonner shares a gripping story of human perseverance and adventure that demonstrates we all have a choice: either define our lives by limitations, or discover just how much we can achieve when we push beyond them.

Colin O'Brady is a professional endurance athlete who has achieved four world records. He grew up exploring the mountains of the Pacific Northwest and cultivated a passion for adventure in the outdoors. His success swimming in Oregon led him to Yale University. After years as a professional triathlete, he returned to his first love - the mountains. In 2016 Colin conquered the speed records for the Explorers Grand Slam and Seven Summits, a global mountaineering challenge to climb the tallest mountain on every continent including Mt. Everest and ski to the North and South Poles. In 2018 Colin shattered the speed record for the 50 High Points Challenge when he summited the highest point in each of the 50 states in just 21 days. On December 26, 2018 he became the first person to cross the landmass of Antarctica solo, unaided by kites or resupplies. He accomplished the feat in 54 days, covering more than 930 miles along the way, including more than 77 miles in the final 32-hour window where he went without sleep. Throughout the nearly two-month journey, O’Brady never took a full day off.

Eric Alexander is a renowned adventurer, skier, and mountaineer. He achieves his goals while helping others achieve their own. He defied the odds and scaled Mount Everest guiding his blind friend Erik Weihenmayer to its lofty summit. The pair was also a part of the first-ever blind ski descents from two of the seven summits. He has successfully climbed the highest point on six of the seven continents and led expeditions throughout Europe, North America, South America, and the Himalayas. He shares incredible stories from his adventures while discussing overcoming obstacles and goal-setting.